- Exam
- JEE Main
- Year
- 2023
- Date
- 8 April
- Shift
- Morning Shift
- Subject
- Chemistry
- Chapter
- Chemical Bonding and Molecular Structure
JEE Main 2023 · 8 April · Morning Shift · Chemistry · Chemical Bonding and Molecular Structure
Given below are two statements : One is labelled as AssertionA and...
Given below are two statements : One is labelled as and the other is labelled as .
Butan––ol has higher boiling point than ethoxyethane.
Extensive hydrogen bonding leads to stronger association of molecules.
In the light of the above statements, choose the correct answer from the options given below :
Options
- AA is true but R is false
- BBoth A and R are true and R is the correct explanation of A
- CBoth A and R are true but R is not the correct explanation of A
- DA is false but R is true
Correct answer
B. Both A and R are true and R is the correct explanation of A
Step-by-step solution
Butan--ol can undergo hydrogen bonding due to the presence of an group, ethoxyethane (also known as diethyl ether) can also participate in hydrogen bonding.
Even though there are no hydrogen atoms directly bonded to a highly electronegative atom (like) in ethoxyethane, the molecule still has polar bonds that can lead to dipole-dipole interactions with other polar molecules.
Owing to intermolecular hydrogen bonding in butanol, it has higher boiling point than ethoxyethane.